loewenthal



(No Model.) 2 Sheets-Sheet 1.

M. LOEWENTHAL. THREAD MEASURING ATTAGHMENT FOR SEWING MACHINES. No. 423,786. Patented Mar. 18, 1890.

(No Model.) 2 SheetsSheet 2.

M. LOEWENTHAL. THREAD MEASURING ATTACHMENT FOR SEWING MACHINES.

No. 423.786. Patented Mar. 18, 1890.

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N. PETE mvwumo n ur. wan-" m". D c.

UNITED STATES PATENT OFFICE.

MARCUS LOEWENTHAL, OF NINV YORK, N. Y.

THREAD-MEASURING ATTACHMENT FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 423,786, dated March. 18, 1890.

Application filed August 21, 1889. Serial No. 821,502. (No model.)

To all whom it may concern:

Be it known that I, MARcUs LOEWENTHAL, a citizen of the United States, residing at New ,York, in the county and State of New York, have invented a certain new and useful Improvement in Measuring Attachment for Sewing and Similar Machines, of which the following is a specification.

' The invention consists in the construction and novel arrangement of parts, as hereinafter set forth.

The object is to provide a device for automatically registering the amount of material-such as thread, cord, braid, &c.- consumed in the manufacture of garments.

In the present instance I have shown the device as attached to a sewing-machine; but it is to be understood that I may attach the device to a knitting or similar machine.

In the accompanying drawings, Figure 1 shows my invention as attached to a sewingmachine. Fig. 2 is a front view of the device, partly in section through the line a :0, Fig. 1. Fig. 3 is a top view. Fig. 4 is a longitudinal section of the registeringmechanism. Fig. 5 isatransverse section of the registering mechanism; and Fig. 6 is a modification of the driving-wheel, having its groove arranged for braid or other material having agreater width than thickness.

Similar letters of reference designate corresponding parts in all the figures.

Referring 'by letter to the drawings, A designates the arm of a sewing-machine, and A is a tension device thereon. As the sewing-machine and tension device may be of any well-known construction, it is not deemed necessary to illustrate or describe the mech anism thereof.

B designates the grooved driving or main wheel secured on and rotating with ashaft (t, which is journaled in a boxing a on a bracket B, secured to the machine-arm A. The wheel B may be removably secured to the shaft a in any well-known manner. I have here shown it as having one end of its hub butted against a collar 1), fixed on the shaft a, and aclamping-nut b butting against the other end of the hub and engaging a threaded portion of the shaft to. One end of the shaft a, is provided. with. a worm. en-

gaging with a toothed wheel 0, which rotates the registering wheels, as hereinafter explained.

D is a supply-spool of thread, cord, orbraid loosely rotating on a spindle (Z, projecting from the bracket B. From this spool D the thread or other material is carried once or more around the wheel B within the groove, thence through the tension A to the goods operated upon.

As it is n'eferahle to supply the thread to the wheel B under an even tension, or, in other words, preventlooping or saggingof the thread between the supply-spool and wheel, I provide a tension devicein connect ion therewith. The tension device here employed consists of a weight 0, having an arm 0, pivoted to the bracket B. It is obvious that the weight, which is preferably ball-shaped, will bear with a slight friction upon the thread and follow toward the spool-shank as the thread is unwound.

The registering mechanism here employed or shown is of an ordinary construction used in so-called addirig-machines, and it is to be understood that I do not limit myself to any specific form of registering mechanism. The registering mechanism here shown maybe described as follows: E designates a suitable case or box mounted on the bracket B, and e c c c e" o c are registering wheels or disks mounted 'on a shaft 0 within the case. It will be seen that the toothed wheel C is rigidly mounted on the outer end of the shaft 0 and the disk e is also rigidly mounted on this shaft, the other disks being loosely mounted thereon. Each disk has on its periphery ordinals from 0 to 9, inclusive, and the wheel B, the worm a and the wheel 0 bear such relation to each other that nine yards of thread or other. material passing over the wheel B will rotate the disk 6 until the ordinal 9 is visible through the sight-opening in the case E. During the revolution of the disk e, as above indicated, the other disks remain idle or with 0 showing. \Vhen one more yard, however, has passed over the wheel B, the disk 6 engages with the disk 6 and moves with it one step, so that ten yards are indicated through the sight-opening, and the disks e &c., remain idle till the disk e shall have The combination, with a sewing-machine and a tension thereon, of a thread-supply, a tension therefor, a wheel arranged between the supply and tension first named, over which thread may run, and a registering mechanism connecting with said Wheel, substantially as made a complete revolution, or indicates 99, and their the next disk is set in motion.

It is obvious that I may duplicate the Whole mechanism employed, so that both thread and 5 braid may be measured during the operation of braiding patterns on goods.

I have employed the term yards, but it specified. is to be understood that the mechanism may 7 ,r 1 be so constructed as to register other measure i R S BN1 [o of length. \Vitnesses:

Vhat I claim as my invention, and desire to secure by Letters Patent, is-

O. R. FERGUSON,

O. EDMONDS. 

